Get the Axis value from radRangeSelector

[Omar]

Hi,

I have chartview and radRangeSelector.

The question is: how can I get the Axis label values for from radRangeSelector for the start and end zoom.

Hope I can get help soon.

/Omar

[Maria]

Hi Omar,

Thank you for your question.

Generally speaking there isn't an easy way to get the labels in the range area. You could use the StartRange and EndRange properties. The values of these properties are of type double and between 0% and 100%. From the photo you sent I see that you use ChartView with the ScatterLine series. Correct me if I am wrong. In this case, you can get the last label in the RangeSelector control and calculate the start and end of the range area. For example:

private void RadRangeSelector1_SelectionChanged(object sender, EventArgs e)
{
    var element = this.radRangeSelector1.RangeSelectorElement;
    var lastLabel = (element.BottomRightScales[0] as RangeSelectorChartScaleContainerElement).Children.Last() as RangeSelectorChartScaleLabelElement;
    int lastValue = int.Parse(lastLabel.Text);
    this.radLabel1.Text = lastValue * (this.radRangeSelector1.StartRange / 100) + " ";
    this.radLabel2.Text = lastValue * (this.radRangeSelector1.EndRange / 100)+ " ";
}

Keep in mind that the above approach is a custom one and it is not fully tested it. However, you can extend it so that it covers all your scenarios. Give it a try and let me know if this works for your case.

Regards,
Maria
Progress Telerik

[Omar]

It's not a perfect solution, but it does the job.

Thanks,

Omar